setUserEmojiStatus

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the behavioral disclosure burden. It declares that this is a mutating operation, names the authorization requirement, and states the success return value (True). It does not cover failure behavior, but the key behavioral context is present.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence that front-loads the action and the critical authorization precondition, then adds the useful success return value. There is no filler or redundant restatement.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The description is complete for a low-complexity tool: the schema documents all parameters, the non-obvious authorization requirement is called out, and the return value is stated since no output schema exists. It could mention explicit failure behavior, but nothing essential is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema provides 100% parameter coverage, each parameter already has a meaningful description, and the tool description does not add semantic details beyond what the schema states. Baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses a specific verb ('Change') and a clear resource ('emoji status for a user'), and it uniquely identifies the target population via the Mini App requestEmojiStatusAccess authorization. This makes it distinguishable from all sibling tools even without naming an alternative.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

It clearly states the required precondition: the target user must have authorized the bot through requestEmojiStatusAccess. This tells the agent when this tool is applicable, though it does not explicitly mention alternatives or exclusion cases.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.